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        "msg1": "1.到github下载：git clone https://github.com/vuejs/vue-...",
        "msg2": "2.在vue-devtools目录下安装依赖包：",
        "msg3": "3.cmd中打开刚刚克隆文件的目录下",
        "msg4": "4.在该目录下安装：npm install"
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